Computer display screen with transitional graphical user interface



FIG. 1 is a front view of a computer display screen with transitional graphical user interface showing a first image in a sequence according to the claimed design; and,

FIG. 2 is a front view showing a second image thereof.

The process or period in which an image transitions to another image forms no part of the claimed design.

The longer broken-line showing of an electronic device and all other broken lines illustrate environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a computer display screen with transitional graphical user interface, as shown and described. 